Anxiety disorders are highly prevalent among those with substance use disorders, but the majority of addictions treatment centers provide little to no evidence-based treatment for anxiety disorders. Furthermore, tension reduction models suggest that treating anxiety should also improve substance use outcomes. This study is aimed at improving symptoms for people who have substance use and anxiety problems. The study is comparing regular Intensive Outpatient treatment for addiction to Intensive Outpatient treatment for addiction plus treatment for anxiety disorders. Clinicians at a community addictions clinic will participate by receiving training in delivering cognitive behavioral therapy for anxiety disorders and will deliver the treatment to the patient participants. They will also complete some questionnaires. Patient participants will be asked to complete a baseline assessment. Those who are eligible will be randomly assigned to one of the two treatment groups. Those who are assigned to addiction treatment as usual will continue their regular care at the Matrix Institute. Participants who are assigned to also receive the anxiety treatment will be asked to participate in 6, 90-min treatment sessions and an orientation session. All participants will be asked to complete post-treatment and follow-up assessments. The assessments should take approximately 1 hour, and the follow-up assessment will be completed 6 months after treatment is over. It is hypothesized that those who get the additional anxiety disorder treatment will show greater improvement in anxiety and substance use outcomes than those who get Intensive Outpatient Program without the anxiety disorder treatment.

Participants receive the adaptation of the Coordinated Anxiety Learning and Management (CALM) protocol that demonstrated effectiveness in a large primary care sample. CALM will be adapted for those with anxiety and substance use disorder comorbidity, and will consist of an orientation session and 6 group treatment sessions. These participants will also receive substance abuse treatment as usual at a community Intensive Outpatient Program.

Behavioral: CALM-SUD

6-session group for anxiety disorders. Cognitive behavioral therapy including self-monitoring, relaxation, cognitive restructuring, exposure therapy, and relapse prevention. In addition, participants in this arm are also enrolled in an Intensive Outpatient Program for their substance use disorder. The program is run by an outpatient addictions facility and includes up to 16 weeks of groups that meet 3 to 4 times per week in addition to up to 10 individual sessions of therapy. The group model includes motivational interviewing, cognitive behavioral therapy, contingency management, and relapse prevention skills.

Active Comparator: Treatment as usual

Participants in this arm receive the standard Intensive Outpatient treatment for their substance use disorder at a community addictions treatment facility.

Behavioral: Treatment as usual

The program is run by an outpatient addictions facility and includes up to 16 weeks of groups that meet 3 to 4 times per week in addition to up to 10 individual sessions of therapy. The group model includes motivational interviewing, cognitive behavioral therapy, contingency management, and relapse prevention skills.

Eligibility

Ages Eligible for Study:

18 Years to 60 Years

Genders Eligible for Study:

Both

Accepts Healthy Volunteers:

No

Criteria

Inclusion Criteria:

18-60 years old

speak English

meet diagnostic criteria for at least one anxiety disorder

score at least an 8 on the OASIS (see Assessments), indicating at least moderate but clinically significant anxiety symptoms

be enrolled in the Intensive Outpatient Program (IOP) at the Matrix Institute (community partner)

meet diagnostic criteria for substance abuse or dependence

Exclusion Criteria:

have unstable medical conditions

marked cognitive impairment

active suicidal intent or plan

active psychosis

unstable Bipolar I disorder.

Contacts and Locations

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study.
To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below.
For general information, see Learn About Clinical Studies.

Please refer to this study by its ClinicalTrials.gov identifier: NCT01764698